This paper examines some actual cases of job studies preliminary to the design of appropriate courses in order to evaluate the various methods of data collection used. The authors found that there is a relationship between the type of data required for the job study and the method of collecting the data. In the study they compare nine different methods of data collection with nine different kinds of data sought. For each they assign a value from a scale of 0 to 5. From the resulting chart the reader will be able to choose a method of collection which has the highest probability of success for the purpose required.
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